RHEL 6 update from 6.8.2 to 7.7.2 Authentication failure! ldap_error: NoMethodError, undefined method `provider'

users who are already have projects are able to login . however any user without project is not able to login . i see below error

E, [2015-02-09T16:59:30.710658 #17028] ERROR – omniauth: (ldap) Authentication failure! ldap_error: NoMethodError, undefined method `provider’ for nil:NilClass

if revert to 6.8.2 everything works . only 7.7.2 ldap authentication fails .